Automatic tool changing apparatus for machine tools



Sept. 5, 1967 R. N. KNOSP 3,339,273

1 AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Feb. 11, 1963 2'7 Sheets-Sheet 1 I A T TOQNEY5,

Sept. 5, 1967 R. N. KNOSP AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Feb. 11, 1965 27 Sheets-Sheet 2 A T TOE ME Y5.

Sept. 5, 1967 R. N. KNOSF' 7 3,339,273

I AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Feb. 11, 1963 27 Sheets-Sheet 5 I NVEN TOR.

R. N. KNOSP Sept. 5, 1967 AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Feb. 11', l963 27 Sheets-Sheet 4 INVENTOR.

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AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Feb. 11, 1963 2'7 Sheets-Sheet 6 INVENTOR. 7W-

R. N. KNOSP Sept. 5, 1967 AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Feb. 11,1965

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AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Feb. 11, 1963 27 Sheets-Sheet lZ Armewsys.

R. N. KNOSP 3,339,273

AUTOMATIC TOOL OHANGING APPARATUS FOR MACHINE TOOLS Sept. 5, 1967 Filed Feb. 11-,

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Se t. 5, 1967 I R. N. KNOSP 3,339,273

AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Feb. 11, 1963 37 Sheets-Sheet 14 AT Twelve ya.

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AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Febf 11, 1963 2'7 Sheets-Sheet l6 Z63 T 282 Z63 257 -1 257 254 Z Y 22,5 55 2&1- Z93 292 I NVENTOR.

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2'7 Sheets-Sheet 19 R- N. KNOSP AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS Filed Feb. 11,

. Sept. 5, 1967 Sept. 5', 1967 3,339,273

AUTOMATIC TOOL CHANGING APPARATUS FOR MACHINE TOOLS R. N. KNOSP Filed Feb. 11, 1965 27 Sheets-Sheet 20 INVENTOR.

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1. A TOOL CHANGING APPARATUS FOR A MACHINE TOOL HAVING A TOOL SPINDLE ADAPTED TO MOUNT A SERIES OF INTERCHANGEABLE CUTTING TOOLS, SAID TOOL CHANGING APPARATUS COMPRISING, A TOOL STORAGE RACK MOUNTED IN SPACED RELATIONSHIP TO SPINDLE, SAID STORAGE RACK HAVING A PLURALITY OF TOOL STORAGE LEVELS, EACH LEVEL ADAPTED TO RELEASABLY SUPPORT A PLURALITY OF INTERCHANGEABLE CUTTING TOOLS, SAID TOOLS ADAPTED TO BE MOUNTED SELECTIVELY IN THE SAID TOOL SPINDLE A TOOL CHANGING ARM, MOUNTING MEANS FOR SAID TOOL CHANGING ARM ADAPTING THE ARM TO BE SHIFTED IN AN ARC BETWEEN THE SAID TOOL SPINDLE AND TOOL CHANGING ARM TO BE MOUNTING MEANS ADAPTING THE TOOL CHANGING ARM TO BE SHIFTED IN A SECOND PATH PARALLEL WITH THE AXIS OF THE SPINDLE AND INTO ALIGNMENT WITH SELECTED LEVELS OF THE TOOL STORAGE RACK, SAID TOOL CHANGING ARM ADAPTED TO ENGAGE AND WITHDRAW A SELECTED CUTTUNG TOOL FROM A SELECTED LEVEL OF THE TOOL STORAGE RACK, SAID ARM THEREAFTER ADAPTED TO SHIFT THROUGH SAID ARC FROM THE STORAGE RACK TO A POSITION ALIGNING THE SELECTED TOOL WITH THE AXIS OF THE SPINDLE AND SPACED OUTWARDLY THEREFROM, ADAPTING THE TOOL TO BE MOUNTED IN THE SPINDLE UPON MOTION OF THE ARM ALONG THE SECOND PATH TOWARD THE SPINDLE. 